Star Trek has revealed why Worf rejoins Starfleet. SPOILERS for Star Trek #2 by Jackson Lanzing, Collin Kelly, Ramon Rosanas, Lee Loughridge, and Clayton Cowles follow. Star Trek fans may remember that Worf left Starfleet and became the Federation’s ambassador to the Klingon Empire in Star Trek: Deep Space Nine’s series finale. Yet, Worf was back serving aboard the USS Enterprise-E during Star Trek: Nemesis, the final Star Trek: The Next Generation movie. The film doesn’t explain what Worf is doing there. The behind-the-scenes reason is that everyone wanted Michael Dorn involved in the final film but the writers didn’t want to waste time explaining Worf’s presence. One might assume he’s visiting for the Riker-Troi wedding, but he acts like a crewmember. The new Star Trek comic from IDW Publishing fills in the gap in continuity leading up to Nemesis, which provides the perfect opportunity to explain what happened with Worf.